(3adhQfSI ai YUQ OGfJi (B/ s - (3QLjQR, Hhd (B. (3Ls; (3eMehO GHQGgjes ((3HjQhJ(B: s (3ecJHI dHfGf , s, 1967)
Keywords: (3JGQjNs; (3OGfJis; (3GjWGdjGs; (3adhQfSGs